Carbureter for explosive-engines



PATENTED SEPT. 20, 1904.

E. H. CLAY. GARBURETER FOREXPLOSIVE ENGINES.

APPLICATION FILED JUNE 26, 1903.

NO MODEL.

No. 77o,559.

UNITED STATES Patented September 20, 1904.

EDWARD H. CLAY, OF OHAGRIN FALLS, OHIO.

CARBURETER FOR EXPLOSIVE-ENGINES- SPECIFICATION forming part of Letters Patent No. 770,559, dated September 20, 1904.

Application filed June 26, 1903- To all whom it may concern.-

' Be it known that I, EDWARD H. CLAY, a citizen of the United States, residing at Chagrin Falls, in the county of Ouyahoga and State of Ohio, have invented a certain new and useful Improvement in Carburetors for Explosive-- Engines, of which the followingis afull, clear, and exact description, reference being had to the accompanying drawings.

My invention relates to improvements in carbureters; and it consists in the construction and combination of parts hereinafter shown, described, and claimed, whereby the operator may increase or diminish at will the supply of the explosive mixture formed and discharge foruse without substantially changing the relative proportions of the constituent parts of said explosive mixture.

Referring to the drawings, Figure 1 is a vertical section through the device. Fig. 2 is an elevation of the valve-casing, and Fig. 3 is an elevation of the needle-valve and the stem to which it is attached.

Referring to the parts by letters, A represents a casing containing a mixing-chamber A, provided with a hydrocarbon-inlet a an air-inlet a, and a mixtu re-outlet (0 The mixture passes through this outlet into a receiving-chamber A from which it passes through the opening a to the engine or other mechanism in which it is utilized. The outlet (0 is surrounded by a tapered val ve-seat a for which the conical valve B is provided. The

hydrocarbon-inlet a is directly opposite the opening ((1 and a needle-valve D projects into said inlet (K, said needle-valve being rigidly but adjustably secured to the valve B, so that both must move simultaneously. This needle-valve has astem d, which passes through and screws into a hole 5, extending through the valve B and its stem 5, and projects from theouter end of said stem, so that it may be operated for the purpose of adjustment. The stem 6 of the valve projects through the cap E of the casing, and to said projecting end an operating-lever G is secured. A spring H surrounds the stem and lies between the valve and the cap E and exerts its force to move said valve toward its seat. The complete closing of the valve is prevented, however, by the Serial No. 163,173. (No model.)

engagement of the lever G with the cap. The valve must always be opened far enough to permit the flowthrough the opening a of the minimum volume of the mixture required.

IVhen the valve B is as nearly closed as possible, the needle-valve is adjusted so that the effective size of the opening a is such as to admit the proper proportion of hydrocarbon for the minimum volume of mixture which can pass through the opening a". The

,two valves B and D are so shaped that the effective size of the openings (0 and a will be proportionately increased or diminished by the simultaneous movement of said valves. The lever G projects out through a notch e in a flange 0 on the cap E, which notch has one inclined or cam surface 0, with which the leverG engages. Byturningthislever in one direction, so that it rides up this cam-surface, the valve will be drawn away from its seat, and the needle-valve D will at the same time be moved so as to proportionately enlarge the opening Thus by operating this lever the volume of the mixture formed and allowed to flow may be increased or diminished; but the character of the mixture will remain substantially unchanged. It will be understood that this mechanism is wholly independent of the valves which must be employed to control the periodic admission of the explosive mixture to the explosive-chamber of an engine. The present invention affords means for varying the volume of the mixture allowed to flow toward an engine and provides for the formation of the mixture as fast as required; but it preserves the substantial uniformity of the mixture in respect to the proportions of air and gas therein. If aliquid hydrocarbon is admitted through the inlet a it is dis charged against the conical valve B, on the surface of which it spreads, so as to be easily vaporized by the air flowing across the said surface.

Having described my invention, I claim 1. In a carbureter, the combination of a casing containing a mixing-chamber having an air-inlet, a hydrocarbon-inlet and a mixtureoutlet formed in line with said hydrocarboninlet and in the opposite wall of the mixingchamber with a conical valve for said outlet,

a needle-valve which enters the hydrocarboninlet and has its stem screwed through said valve, and mechanism under the control of the operator for moving said valve, substantially as described.

2. In a carbureter, the combination of a casing containing a mixing-chamber having an air-inlet, a hydrocarbon-inlet, and a mixtureoutlet, with a conical valve for said outlet having a stem which extends out of said casing, a spring moving said valve in one direction, a handle secured to said stem, a camsurface with which said handle engages and a needle-valve which enters the hydrocarboninlet and is connected with the conical valve, substantially as described.

3. In a carbureter, the combination of a casing containing a mixing-chamber having an air-inlet, a hydrocarbon-inlet, and a mixtureoutlet formed in line with said hydrocarboninlet and in the opposite wall of the mixingchamber,with a valve for said outlet, a spring ton in the cylinder.

In testimony whereof I hereunto aifix my signature 1n the presence of two witnesses.

EDWARD H. CLAY.

Witnesses:

E. B. GILoHRIsT, E. L. THURSTON. 

